tools/perf/util/probe-finder.h

   1 #ifndef _PROBE_FINDER_H
   2 #define _PROBE_FINDER_H
   3
   4 #define MAX_PATH_LEN 256
   5 #define MAX_PROBE_BUFFER 1024
   6 #define MAX_PROBES 128
   7
   8 static inline int is_c_varname(const char *name)
   9 {
  10         /* TODO */
  11         return isalpha(name[0]) || name[0] == '_';
  12 }
  13
  14 struct probe_point {
  15         char    *event;         /* Event name */
  16         char    *group;         /* Event group */
  17
  18         /* Inputs */
  19         char    *file;          /* File name */
  20         int     line;           /* Line number */
  21
  22         char    *function;      /* Function name */
  23         int     offset;         /* Offset bytes */
  24
  25         int     nr_args;        /* Number of arguments */
  26         char    **args;         /* Arguments */
  27
  28         int     retprobe;       /* Return probe */
  29
  30         /* Output */
  31         int     found;          /* Number of found probe points */
  32         char    *probes[MAX_PROBES];    /* Output buffers (will be allocated)*/
  33 };
  34
  35 #ifndef NO_LIBDWARF
  36 extern int find_probepoint(int fd, struct probe_point *pp);
  37
  38 #include <libdwarf/dwarf.h>
  39 #include <libdwarf/libdwarf.h>
  40
  41 struct probe_finder {
  42         struct probe_point      *pp;    /* Target probe point */
  43
  44         /* For function searching */
  45         Dwarf_Addr      addr;           /* Address */
  46         Dwarf_Unsigned  fno;            /* File number */
  47         Dwarf_Unsigned  lno;            /* Line number */
  48         Dwarf_Off       inl_offs;       /* Inline offset */
  49         Dwarf_Die       cu_die;         /* Current CU */
  50
  51         /* For variable searching */
  52         Dwarf_Addr      cu_base;        /* Current CU base address */
  53         Dwarf_Locdesc   fbloc;          /* Location of Current Frame Base */
  54         const char      *var;           /* Current variable name */
  55         char            *buf;           /* Current output buffer */
  56         int             len;            /* Length of output buffer */
  57 };
  58 #endif /* NO_LIBDWARF */
  59
  60 #endif /*_PROBE_FINDER_H */